LEMO S-series connector

LEMO is a Swiss connector company founded in 1946.

4-pin connectors for probe power

Tektronix used 4-pin LEMO S-series connectors (size 0S, configuration 304) to provide probe power.

See the LEMO Unipole and Multipole Connectors list, plug FFA.0S.304.CLAC42 and socket ERA.0S.304.CLL.

Scopes	Supplies	Probes
7104, R7103 7904, 7934 7844, 7834 7704 475, 485 2465 Opt.11 / 2467 Opt.11 2430A Opt.11 / 2432A Opt.11 2440 Opt.11 ...	1101 power supply ...	P6201 P6202A P6230 P6051 ...

A two-pin LEMO S-series connector is used on the P6601 temperature probe for the DM501, DM502A and 7D13A
A four-pin LEMO S-series connector is used on the P6058 voltage and temperature probe for the DM501, 7D13, and 7D12/M1
A six-pin LEMO S-series connector is used to connect a P6407 word recognizer probe to 2445 Opt. 09, 2465 Opt. 09, 2430A Opt. 03, 2432A Opt. 03 and 2440 Opt.03 scopes.

LEMO S-series male (on P6201)
Probe power connector on rear panel of 7104
Six-pin LEMO connector for connecting a P6407 word recognizer probe to a 2440 Opt.03 scope